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Author Topic: Loss of power  (Read 2953 times)

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willerby

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Loss of power
« on: 14 April 2010, 20:55:28 »
Hello . Its difficult to explain my problem but here goes .Drove the car all day Monday and it was running fine . Got in the car late afternoon and it was sluggish and running 'lumpy' . Next day stared ok but still 'lumpy' but when up to speed it was fine . When you accelerated the engine vibrated like a machine gun going off , if you eased back it was ok . Took it to garage and they changed the plugs and said all was ok . On drive home same problem but much less severe . Any ideas ? Thanks  :-/   
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Marks DTM Calib

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Re: Loss of power
« Reply #1 on: 14 April 2010, 21:21:01 »
Coil pack at a guess....can you remove it and look for rust and damage.

Any oil in the plug wells?
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willerby

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Re: Loss of power
« Reply #2 on: 14 April 2010, 21:32:32 »
No oil , coil pack where is that ?
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RobG

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Re: Loss of power
« Reply #3 on: 14 April 2010, 21:33:53 »
Under the black plastic "Ecotec" cover
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willerby

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Re: Loss of power
« Reply #4 on: 14 April 2010, 22:03:03 »
Thanks I'll have a look .
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willerby

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Re: Loss of power
« Reply #5 on: 17 April 2010, 19:39:31 »
I have had a look at the coil pack and it looks ok , no damage or rust . Is there any checks that can be done to it apart from a visual look .
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PhilRich

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Re: Loss of power
« Reply #6 on: 17 April 2010, 20:10:58 »
Quote
I have had a look at the coil pack and it looks ok , no damage or rust . Is there any checks that can be done to it apart from a visual look .




Did you actually remove the coil pack & check the rubber plug covers for damage or deterioration? :-? 
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willerby

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Re: Loss of power
« Reply #7 on: 17 April 2010, 20:14:44 »
Yes , removed it from the vehicle , looks ok , well to me it does I can't see anything obvious .
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willerby

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Re: Loss of power
« Reply #8 on: 21 April 2010, 19:57:23 »
Took the advice and fitted a new coil pack today , all now ok thanks for the excellent advice  :y
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willerby

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Re: Loss of power
« Reply #9 on: 23 November 2010, 19:57:45 »
Hello , new problem started today. No power when you put your foot down and the engine has an uneven idle. Could it be the coil pack again.
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geoffr70

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Re: Loss of power
« Reply #10 on: 23 November 2010, 20:00:47 »
Did you fit a new genuine GM one or a second hand pattern one?
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willerby

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Re: Loss of power
« Reply #11 on: 23 November 2010, 20:21:04 »
non genuine.
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Broomies Mate

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Re: Loss of power
« Reply #12 on: 23 November 2010, 20:50:24 »
Quote
non genuine.

Get a warranty replacement on the Coil Pack you bought in April.  It is relatively unlikely the Coil Pack has failed in 6 months (even though it is non genuine) but it is still under warranty and it will at least eliminate the pack as a potential problem.  :y
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davethediver

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Re: Loss of power
« Reply #13 on: 24 November 2010, 12:15:14 »
HAve you had the codes read, might give you a better idea as to where to start looking ;)
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willerby

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Re: Loss of power
« Reply #14 on: 24 November 2010, 12:26:54 »
Started the car this morning no problem. looked under the bonnet to try and see if anything was loose etc but saw that the cooling fan was running with a stone cold engine. Drove the car about 20 miles with no problems and checked under bonnet again and fan was not running. Does this indicate anything.
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